handle Nulls, rrx:languageColumn

#1 Merged
Repository
valexiev
Branch
RDF-RDB2RDF
Repository
tobyink
Branch
RDF-RDB2RDF
Author
  1. Vladimir Alexiev
Reviewers
Description

Sorry, it's my first time using Bitbucket, so there are 2 unrelated changesets here:

  1. If a column value (or any of the columns in a rr:template) is null, an r2rml processor should skip the involved triple.
    If the rr:subjectMap column is null, it should skip all triples in that rr:TriplesMap.
    http://lists.w3.org/Archives/Public/public-rdb2rdf-comments/2013Sep/0004.html

  2. Implemented extension rrx:languageColumn to retrieve the language of a literal from a column.
    http://lists.w3.org/Archives/Public/public-rdb2rdf-comments/2013Sep/0000.html

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